'use strict';
//////////////////////////////////////////////////////////////////////////////
// 字符串处理转码/解码 base64
// 工具类 指令
// =====================
// liuyp 2018年12月17日23: 29: 26 整理先进
//////////////////////////////////////////////////////////////////////////////
var _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
function encodeBase64 (input) {
    var output = ""; var chr1, chr2, chr3, enc1, enc2, enc3, enc4; var i = 0; input = _utf8_encode(input);
    while (i < input.length) {
        chr1 = input.charCodeAt(i++); chr2 = input.charCodeAt(i++); chr3 = input.charCodeAt(i++);
        enc1 = chr1 >> 2; enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); enc4 = chr3 & 63;
        if (isNaN(chr2)) { enc3 = enc4 = 64; } else if (isNaN(chr3)) { enc4 = 64; }
        output = output + _keyStr.charAt(enc1) + _keyStr.charAt(enc2) + _keyStr.charAt(enc3) + _keyStr.charAt(enc4);
    }
    return output;
}
function _utf8_encode (string) {
    string = string.replace(/\r\n/g,"\n");
    var utftext = "";
    for (var n = 0; n < string.length; n++) {
        var c = string.charCodeAt(n);
        if (c < 128) { utftext += String.fromCharCode(c); }
        else if((c > 127) && (c < 2048)) { utftext += String.fromCharCode((c >> 6) | 192); utftext += String.fromCharCode((c & 63) | 128); }
        else { utftext += String.fromCharCode((c >> 12) | 224); utftext += String.fromCharCode(((c >> 6) & 63) | 128); utftext += String.fromCharCode((c & 63) | 128); }
    }
    return utftext;
}
function decodeBase64 (input) {
    var output = "",chr1, chr2, chr3,enc1, enc2, enc3, enc4, i = 0;
    input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
    while (i < input.length) {
        enc1 = _keyStr.indexOf(input.charAt(i++)); enc2 = _keyStr.indexOf(input.charAt(i++));
        enc3 = _keyStr.indexOf(input.charAt(i++)); enc4 = _keyStr.indexOf(input.charAt(i++));
        chr1 = (enc1 << 2) | (enc2 >> 4); chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); chr3 = ((enc3 & 3) << 6) | enc4;
        output = output + String.fromCharCode(chr1);
        if (enc3 != 64) { output = output + String.fromCharCode(chr2); }
        if (enc4 != 64) { output = output + String.fromCharCode(chr3); }
    }
    output = _utf8_decode(output);
    return output;
}
function _utf8_decode (utftext) {
    var string = "", i = 0, c, c1, c2, c3;
    c = c1 = c2 = 0;
    while (i < utftext.length) {
        c = utftext.charCodeAt(i);
        if (c < 128) { string += String.fromCharCode(c); i++; }
        else if((c > 191) && (c < 224)) { c2 = utftext.charCodeAt(i+1); string += String.fromCharCode(((c & 31) << 6) | (c2 & 63)); i += 2; }
        else { c2 = utftext.charCodeAt(i+1); c3 = utftext.charCodeAt(i+2); string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63)); i += 3; }
    }
    return string;
}
function bs64tool() {
    return {
        restrict: 'AE',
        scope: { ngModel: "=" },
        link: function (scope, $element, attrs) {
            scope.$watch("ngModel",function(n,o){
                var v1 = n;
                var v2 = encodeBase64(v1);
                var v3 = v1 == decodeBase64(v2);
                var v4 = decodeBase64(v1);
                var v5 = v1 == encodeBase64(v4);
                $element.html('\
                    <h4>(原文) <code>'+ (v1) +'</code> </h4>\
                    <h4>(编码) <code>'+ (v2) +'</code> </h4>\
                    <h4>(校验编码) <code>'+ (v3) +'</code> </h4>\
                    <h4>(解码) <code>'+ (v4) +'</code> </h4>\
                    <h4>(校验解码) <code>'+ (v5) +'</code> </h4>\
                ');
            });
        }
    }
}
//////////////////////////////////////////////////////////////////////////////
// 字符串处理转码/解码 Url
// 工具类 指令
// =====================
// liuyp 2019年1月10日17: 45: 58 整理先进
//////////////////////////////////////////////////////////////////////////////
function encodeUrl() {
    return {
        restrict: 'AE',
        scope: { ngModel: "=" },
        link: function (scope, $element, attrs) {
            scope.$watch("ngModel",function(n,o){
                var v1 = n;
                var v2 = encodeURI(v1);
                var v3 = encodeURIComponent(v1);
                $element.html("<h4>(原文) <code >"
                    +v1+"</code> </h6> <h4>(encodeURI) <code >"
                    +v2+"</code> </h6> <h4>(encodeURIComponent) <code >"
                    +v3+"</code> </h6>");
            });
        }
    }
}
function decodeUrl() {
    return {
        restrict: 'AE',
        scope: { ngModel: "=" },
        link: function (scope, $element, attrs) {
            scope.$watch("ngModel",function(n,o){
                var v1 = n;
                var v2 = decodeURI(v1);
                var v3 = decodeURIComponent(v1);
                $element.html("<h4>(原文) <code >"
                    +v1+"</code> </h6> <h4>(decodeURI) <code >"
                    +v2+"</code> </h6> <h4>(decodeURIComponent) <code >"
                    +v3+"</code> </h6>");
            });
        }
    }
}
//////////////////////////////////////////////////////////////////////////////
// 字符串处理转码/解码 unicode
// 工具类 指令
// =====================
// liuyp 2019年1月10日17: 45: 58 整理先进
//////////////////////////////////////////////////////////////////////////////
function _String_asc2Uni(str) {
    var res = []; if(""==(str)) { return "" }
    for(var i = 0,l = str.length; i < l; i++) {
        res[i] =('00' + str.charCodeAt(i).toString(16)).slice(- 4);
    }
    return '\\u' + res.join('\\u');
}
function _String_uni2Asc(S){
    return window.unescape(S.replace(/\\/g,"%"));
}
function toAscUni() {
    return {
        restrict: 'AE',
        scope: { ngModel: "=" },
        link: function (scope, $element, attrs) {
            scope.$watch("ngModel",function(n,o){
                var v1 = n;
                var v2 = v1.replace(/[\u4E00-\u9FA5\uF900-\uFA2D]+/g,function(ins) { return _String_asc2Uni(ins) }).replace(/\\/g,"\\");
                var v3 = _String_asc2Uni(v1);
                $element.html("<h6>(原文) <code >"+v1+"</code> </h6> <h6>(中文) <code >"+v2+"</code> </h6> <h6>(转换) <code >"+v3+"</code> </h6>");
            });
        }
    }
}
function toUniAsc() {
    return {
        restrict: 'AE',
        scope: { ngModel: "=" },
        link: function (scope, $element, attrs) {
            scope.$watch("ngModel",function(n,o){
                var v1 = n;
                var v3 = _String_uni2Asc(v1);
                $element.html("<h4>(原文) <code >"
                    +v1+"</code> </h6> <h4>(转换) <code >"
                    +v3+"</code> </h6>");
            });
        }
    }
}
exports = module.exports = [ bs64tool, encodeUrl, decodeUrl, toAscUni, toUniAsc ];